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LINK can be used to store a [[return address]] into R<sub>11</sub> when jumping to a subroutine.
LINK can be used to store a [[return address]] into R<sub>11</sub> when jumping to a subroutine.
The [[ALT0]] state is restored.


==== Syntax ====
==== Syntax ====
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LINK #n
LINK #n
</pre>
</pre>
==== Example ====
Let:
R<sub>15</sub> : 4368h
After executing the following program:
4368 LINK #4
4369 IWT R<sub>15</sub>, #74ffh
436C NOP
436B IBT R<sub>1</sub>, #12h
We have:
R<sub>11</sub> = 4369h + 2 = 436bh


=== See Also ===
=== See Also ===

Latest revision as of 00:12, 13 July 2024

Basic Info
Addressing Mode Opcode Length ROM Speed RAM Speed Cache Speed
Immediate 9n 1 byte 3 cycles 3 cycles 1 cycle
Flags Affected
B ALT1 ALT2 O/V S CY Z
0 0 0 . . . .

LINK is a Super FX instruction that stores the sum of R15 (program counter) and an immediate value (n) into R11. The operand n is the low nybble of the opcode and may be any integer from 1~4.

LINK can be used to store a return address into R11 when jumping to a subroutine.

The ALT0 state is restored.

Syntax

LINK #n

Example

Let: 

R15 : 4368h

After executing the following program: 

4368 LINK #4
4369 IWT R15, #74ffh
436C NOP
436B IBT R1, #12h

We have: 

R11 = 4369h + 2 = 436bh

See Also

External Links

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